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<html lang="en">

<head>
	<meta charset="UTF-8" />
	<meta name="viewport" content="width=device-width, initial-scale=1.5" />
	<meta http-equiv="X-UA-Compatible" content="ie=edge" />
	<link rel="stylesheet" href=".../asdf" />
	<style>
		body {
			color: red;
			font-size: 50px;
		}

		span {
			color: blue;
		}
		div {
			border: 1px solid black;
		}
		#tDiv {
			width: 500px;
			height: 100px;
			text-align: center;
		}
		#t2Div {
			/* margin: 5px auto; */
		}
		#conDiv{
			text-align: center;
		}
	</style>
	<title>Document</title>
</head>

<body>
	<div id="tDiv">
		<span>开始</span>
		x<span>xy哈哈</span>
		<span>n</span>
	</div>
	<div id="conDiv">
		x<div id="t2Div" style="width: 50px;">y</div>
	</div>
	<span style="width: 500px;text-align: center; color: gray;">哈哈 真的简单</span>
	<script src=".../xxx.js"></script>
</body>
<script></script>

</html>